Folded planar luneberg lens based on PCB technology and manufacturing method

Abstract

The invention belongs to the technical field of communication, and particularly relates to a folded planar luneberg lens based on a PCB technology and a manufacturing method. The lens comprises an input end, an output end and a lens part. The lens part is composed of a folded complete luneberg lens, the folded luneberg lens is divided into two parts, namely a first part and a second part, and eachof the first part and the second part is composed of a plurality of metal layers and a dielectric layer. The dielectric layer is a dielectric substrate, air through holes are formed in the dielectricsubstrate, and a plurality of groups of air through holes are formed in each dielectric substrate. The inner diameters of each group of air through holes are equal, and the groups of air through holes are distributed on the arcs of the concentric semicircles. All the air through holes are diffused from inside to outside in a concentric semicircular structure, and the inner diameters of the air through holes are gradually increased from inside to outside. The planar luneberg lens is folded by using a multi-layer structure, the area of the lens is reduced to 1/2 of the original area, and the luneberg lens is based on an open pore structure and can be processed and realized by using a PCB (printed circuit board) technology, so that the cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of communications, and in particular relates to a folded planar Luneberg lens based on PCB technology and a manufacturing method. Background technique [0002] Beamforming networks are passive circuits commonly used in modern wireless communication networks to control multi-beamforming and switching of antennas. For example, in satellite communication, it is necessary to receive the electromagnetic wave signal transmitted by the satellite through the antenna, but as the receiving position changes, it is often necessary to adjust the direction of the main lobe of the antenna to align with the direction of the signal to achieve maximum signal reception. The multi-beam antenna provides a low-cost, high-efficiency beam switching method. Among them, the Lunberg lens is a commonly used beam forming network, which is used to excite the antenna array and realize the multi-beam antenna. [0003] Luneburg lenses in ...

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Problems solved by technology

[0003] Lunberg lenses in the prior art often have complex structures, large areas, and high costs, and most of them are three-dimensional Lunberg lenses

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